.box{
    height: 50px;
    background-color:antiquewhite;
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 2;
    .content{
        width: 1200px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        .left{
            display: flex;
            align-items: center;
            span{
                padding: 11px 10px;
                font-size: 16px;
                box-sizing:border-box;
                cursor: pointer;
                border-bottom: 2px solid hsla(120, 100%, 50%, 0);
            }
            .active{
                color: red;
                border-bottom: 2px solid red;
            }
            .search{
                position: relative;
                left: 50px;
                input{
                    outline: none;
                    border: none;
                    background-color: #f5f6f7;
                    padding: 10px 20px 10px 10px;
                }
                img{
                    position: absolute;
                    top: 50%;
                    transform: translateY(-50%);
                    right: 2px;
                    width: 18px;
                    height: 18px;
                }
            }
        }
        .right{
            display: flex;
            justify-content: space-between;
            align-items: center;
            img{
                width: 18px;
                height: 18px;
            }
            span{
                padding-left: 10px;
                cursor: pointer;
            }
        }
    }
}